RAID is an acronym that stands for "redundant array of independent disks". It is a technology that is geared to provide greater storage reliability by combining numerous low-cost, less-reliable disk drive components into a reasonable unit where all drives are interdependent.
Historically, RAID was first seen by Norman Ken Ouchi, when in 1978 he was awarded a U.S. patent called "System for recovering data stored in failed memory unit." It was later termed RAID 5 with full stripe writes....